Owner's Manual

17
Port
Displays the port number.
Link Status
Indicates whether the link is up or down.
Mode
Select the speed and the duplex mode of the Ethernet connection on this
port. Selecting Auto (auto-negotiation) allows one port to negotiate with a
peer port automatically to obtain the connection speed and duplex mode that
both ends support. When auto-negotiation is turned on, a port on the Switch
negotiates with the peer automatically to determine the connection speed
and duplex mode. If the peer port does not support auto-negotiation or turns
off this feature, the Switch determines the connection speed by detecting
the signal on the cable and using half duplex mode. When the Switch's auto-
negotiation is turned off, a port uses the pre-configured speed and duplex
mode when making a connection, thus requiring you to make sure that the
settings of the peer port are the same in order to connect.
Flow Control
A concentration of traffic on a port decreases port bandwidth and overflows
buffer memory causing packet discards and frame losses. Flow Control is
used to regulate transmission of signals to match the bandwidth of the
receiving port. The Switch uses IEEE 802.3x flow control in full duplex mode
and backpressure flow control in half duplex mode.
IEEE 802.3x flow control is used in full duplex mode to send a pause signal
to the sending port, causing it to temporarily stop sending signals when the
receiving port memory buffers fill.
Back Pressure flow control is typically used in half duplex mode to send a
"collision" signal to the sending port (mimicking a state of packet collision)
causing the sending port to temporarily stop sending signals and resend
later.
Port
Description
For user’s convenience, user can have a description of this port by input text
into this field.
Click Apply to save settings.
SFP Information
The SFP Information screen contains SFP Module status and basic information. To access the
page, click SFP Information under the System menu.